MX52NV and d-mag chat about ECUs and boost control

Postby **Okibi** » Wed Dec 03, 2008 11:15 pm

mx52nv wrote:
d-mag wrote:As I posted up originally, I chose the tuner first, AVO.
Totally agree with the philosophy there mate. Just so you know
d-mag wrote:I also have an external Boost controller, just to be on the safe side.
Could you explain why this is safer? I just wanted your thoughts on the matter. I think this is the whole point of having a turbo section for the forum, so we can all share our thoughts on the subject to make this a wholly informative and educational experience for the not-so-initiated

Actually should we just start another thread? Okibi, what do you reckon?

Postby **mx52nv** » Thu Dec 04, 2008 8:42 am

Thank you Okibi for making this thread. A bit of background first:

I think d-mag and I were discussing the merits of aftermarket ECUs and also the Link computer.

I made the comment that one should make sure there are plenty of auxiliary outputs available and dedicated boost, idle up and starter motor controls. This was because some packaged Link computers (that are sold with the AVO turbo kits) do not do certain important functions like read MAP sensor and control boost at the same time.

d-mag then specified his version of the Link ECU (with a website link I think) and that he was using an external boost controller as his post above, which brings us to this topic :mrgreen:

Okay, guess it is over to d-mag now

d-mag · Postby **d-mag** » Thu Dec 04, 2008 12:30 pm

ROFL! This is hilarious Dave

Good summation mx52nv.

Your right, the packaged units aren't too flash, the stand alones are much better.
Why I got the external boost controller? A previous car (still have it actually) had over-boost issues even though the ECU it had had a boost controller. Is it necessary with the LINK G4? Probably not, but as the internals are still stock I didn't want to risk it (paranoia, I know. I blame the pot from my teenage years

).

Also, the Turbosmart duel stage boost controller I got allows me to have this nifty James Bondesqe toggle switch for high/low boost. :mrgreen:

Postby **mx52nv** » Thu Dec 04, 2008 12:35 pm

ROFLMAO!!!

I have the same aircraft toggle switch :lol:

Except mine is for anti-lag :mrgreen:

bruce · Postby **bruce** » Mon Dec 08, 2008 11:16 am

Anti-lag = 'pop, pop, bang, bang' at the lights?

Juffa · Postby **Juffa** » Mon Dec 08, 2008 12:07 pm

Question. I thought a boost controller (manual or electronic) only allowed you to increase boost above the level allowed by the wastegate actuator?

I installed one with my earlier model link ECU and had at least one major over boost incident before I disconnected it.

J

ampz · Postby **ampz** » Mon Dec 08, 2008 3:31 pm

That's right Juffa...

I had a hose blow off my last one and at the time had no overboost protection (smart)...

I since changed that with the replacement engine :mrgreen:

Postby **mx52nv** » Mon Dec 08, 2008 6:53 pm

bruce wrote:Anti-lag = 'pop, pop, bang, bang' at the lights?

Well yes to the "pop, pop, bang, bang" but definitely not the the lights. Unless of course you mean the 'Christmas' tree lights at the start of Motorkhana events :mrgreen:

Juffa wrote:Question. I thought a boost controller (manual or electronic) only allowed you to increase boost above the level allowed by the wastegate actuator?J

Correct. The spring rating (PSI) will determine the minimum boost that the actuator will allow before opening its valve and venting the positive pressure.